Annealing-box bottom.



J. E. BOSSINGHAM. ANNEALING BOX BOTTOM.

APPLIGATION FILED 1150.4, 1911.

Patented July 2s, 1914L A 2 SHEETS-SHEET 1 ance/nto@ Jo/m/ Zi BQsSzgiw/m.

, a mw Sitemap J. E. BossINGHAM.

4 ANNBALING BOX BOTTOM. v

APPLICATION FILED DEO. 4, 1911.

APatented July 28, 1914.

2 BHEETS-SHEET 2.

provide alight STATES BATENTOFFICE.

Toiallcohortitmayconcern.: l Be it known that I, Jolnr E. Bossm'cnm,

A a citizen-of the 'United States, residing at Canton, inthe county of Stark and State of Ohio, have-invented a new and useful AnnealingLBoX Bottom, of which the fol-v A lowing is a specification.

This invention 'relates to improvements in 'Y bottoms or bed-plates Yfor annealing boxes for use in` annealing furnaces, and especially Y claims.

The objects of the invention are to gener-` ally improve devices of the character mena tioned, to provide an annealingbox bottom adapted to permit heat to penetrate into the interior of said box through the bottom as well as through the sides, ends and top, to conveniently handled bot# tom which will be strong and not subject to injurious warping, andA to provide for the convenient handling of the assembled lbox and bottom when inserting same into the furnace or withdrawing them-therefrom. j

-These objects, together with other objects 'Y readily apparent to those skilled inthe art,

may be attained bythe construction illustrated in the accompanying drawings, although the invention maybe embod1ed in other forms, 'the construction illustrated being. chosen by way of example.

. In the drawings Figure 1 is a view of the closing member of a ottom embodying my invention, parts beingbroken away. Fig. 2 is a fragmentary vertical sectional view .of the closing member taken at fone end of the same on the line 2-2 of Fig.

sembled position.

3. Fig. 3 is a vertical transverse sectional view of the closing member illustrated in lFig. 1 witha f ragmentary'sectional view of an annealing box arranged thereon. Fig.

4 is a perspective view ofthe supporting l-m'ember of the bottom. Fig. 5 is a fragmentary perspective of one'corner of the supporting member. asviewed from below. Fig. 6 is 'a vertical transverse sectional view -through both members of the bottom in as 'Throughut'the several views similar reference numerals indicate similar parts.

An 'annealing box'bottom embodyingmy invention com risesbot-h a cl member andfasnpportmg member, prefera ly made separable from each other. The, closingA A spammeur of man naar. Y Application illed December 4, 19171. Serial ll'o. 629,198.

rspective Patented .nay 2s, i914.

member is generally` formed of a main frame, supPQrtS, and arch-formed sections connected to said frame and-supports. In the construction disclosedin the drawings a channel forms the outer frame and is arranged to constitute the side frame portions 1 and the end frame portions2. 'Itwill be noted that the flanges of the channel are i11- wardly disposed, and it is preferable that the channel be not entirely cut at the `corners, but thatthe flanges be merely notched and the web bent, so that the mainframe maybe thus made Astrong and of few parts.l Extending across from side to side or end to end of said main frame are spaced, intermediate supports such as the I-beams 3 shown in the drawings extending from one end to the other and fastened to said ends in any substantial, mechanical manner. This `may beaccomplished by cutting awaythe flanges of the I-beams and letting the projectingweb thereof in between the anges of the channel, asshown in Fig.y 2.

The sections 4 are preferably made of metallic plates, arched 1n cross section, having downwardly disposedaedgesat both sides and ends fastened to the websY of the su ports 3 and tothe main frame, as jby t e rivets`5. It will be nted that the to` and bottom flanges of the I-beams 3 are su '11: tially in the same planes with thetop and bottom'flanges of .the channel forming the main frame.

surface on which to arrange thev sheets or n other material to be annealed, the removable plate 6 is provided, which preferably consists of a plate of material'laid on top of the upper flanges of the main frame and I-beams A05 3. On this removable plate the material to be annealed may be placed and the annealing box,0f any suitable constructiom may be set d own upon the plate 6 andover saidV is the reinforcin bar 8 which consists of a band or plate o material somewhat wider than the web of the channel of which the 105 main frame is constructed, said bar 8 riveted to the side portions 1V and end p01'-v tions 2' of said main frame with the lower edge of said'bar substantiallyin line with the lower ilan'ge of saidportions, and the u per 11o edge of saidb'ar projecting suiciently a ve the upper flange of said vframe portions to material. Such a` box is indicated' bythe 100 :numeral7in thedra v Extending entirely around'the main frame g vLicencia;

constitute a retaining iiange V9 for the sand used in sealing the box to the closing membent at the corners So that Said bar may be- 'bei'. Itis preferable that the bar 8 be merely made in few-parts. It is also preferable that any joints in said bar be arranged at pints where there are no joints of the main me.

`In the drawings it will'be notedthat the joints ofthe main frame are at theends and the joints ofthe reinforcing bar are at the sides of the structure.

The supporting member is preferably formed of a single casting` and comprises longitudinal tubular portions 10 and transverse tubular-portions 11 Aintersecting the portions 10. Both longitudinal and trans'- verse portions have free extendedends provided with integral, upwardly extending retaininglugs .12.' Formed integrally with the cylindrical walls of each portion 10 is the tp supporting flange 13 and each portion 11 is similarly. providedv with the similar integral flange-14. On the lower side of each portion 11 is an integral ange v15, extending rom end to end of said portion. Forme integrally with-the portions 10 on the under side thereof, are the ball-race flanges 16 con stituting downwardly open: inverted V- shaped run-ways adapted to receive the weight-carrying balls of usual construction upon which the annealing box bottoinsma be moved into or out 'of t e furnace. It w' l benoted that the side walls of said run-ways o extend downwardly beyond the cylindrical walls of the portions 10, and interru t .the

flanges 15v on lthe portions 11, as c early shown in Figs. 5 and 6. From an inspection of saidfigures it will be seen .that the walls of the run-ways 16 together with the cylindrical walls of the portions 10 and the anges 3 combine to form a strongly braced structure adapted to carry a, great ampunt of weight.

When the closingv member hereinbefore described is arranged upon the supporting member as shown in Fig. 6, the flanges 13 and 14 receive the main frame and I-beams of theelosing member, while the lugs 12 re- .every tain the closing member in proper position upon the supporting member, aswill be.

readily understood. The longitudinal and transverse portions of the supporting member forming an open or skeletonstructure, the heat of the furnace is permitted to come into direct vcontact with the under side of theclosing member and to have'access to ortion of'saidmnder side. By reason o this construction the heatwill be enabled topenetrate throu h sections 4 and plate 6-into the interior o the box andthe material to be annealed arranged therein with substantiall the same-.readiness as it penetrates the si e, end andtop walls of the -.boxsitselfL Thisbem l true less time is re-1 quiredfor bringing t e material to be auf' nealed' up tothe necessary temperature thus effecting a saving of time and heat and making it unnecessary to subjectthe box and its bottomto such a high degree'of heat or' for such a length of time as would otherwise be necessary in order that the material to be annealed shall receive the necessary treat- Iment.

The tubular construction of the sup orting member permits rapidand uniform eating thereof and does away,to alarge extent, with the injury which would otherwise result to such a structure by reason of the re- 1peated subjection of such member to intense eat. The uniform heating of said member by reason of its tubular construction and the prevention of undue warping adds greatly tothe life and usefulness of said member.

Attention should also be called tothefact that by reason of the arched construction of the sections 4, they are consequently free to expand and contract without materially a'ecting the closing member in general, does away with injurious warping of said closing member and ladds greatly to Iits life and usefulness. It will be understood that said lsections'bein'g upwardly larched, upon exvianges thereof inwardlyturned, I-beani supports extending across s aid main frame and connected thereto, and arch-formed sections connected'to said main frame and supports.`

3. In an annealing box" bottom, -a `supporting member formed of intersecting tubular portions constituting a skeleton structure.

4. l In an annealing box bottom, asupporting member comprising integral, intersecting vtubular portions provide with integral top support-ing flanges extending upwardly from said portions.

ing member made of a single castingcomprising longitudinal tubular 1 portions and transverse tubular portions intersecting said longitudinal portions, both longitudinal-'and v' transverse portions provided with integral fiangeszextending upwardly along` their up per sides, said transverse' portions provided with'integral anges extended downwardly from their under sides, and saidlon tudinalA rtions provided with `downwa y open 5. In an annealing box bottom, a supportf ist all .run-ways formed from integral dungen-1u united at points within the eirumferences of said longitudinal portions and having ex-l ternal portions extending downwardly beyond the lower 'sides of said longitudinal l portions and interrupting the anges on the lower sides of said transverse portlons. In testimony that I claim the above, I

have hereunto subscribed my name the presence of two witnesses.

JOHN E. BOSSINGHAM.

' Witnesses: Y 'v WILLIAM H. MILLER, 'J. A. JEFFERS.v 

